/TERMINATE
       /NOTERMINATE

    Specifies whether the command string will be terminated
    (processed) when you press the function key. The default is
    /NOTERMINATE, which allows you to press other keys before the
    command string is processed. Pressing Return has the same effect
    as using /TERMINATE.

    The /NOTERMINATE qualifier allows you to create key definitions
    that insert text into command lines, after prompts, or into other
    text that you are typing.